SE7810348L - RESONATOR DEVICE FOR ACOUSTIC VAGORS - Google Patents
RESONATOR DEVICE FOR ACOUSTIC VAGORSInfo
- Publication number
- SE7810348L SE7810348L SE7810348A SE7810348A SE7810348L SE 7810348 L SE7810348 L SE 7810348L SE 7810348 A SE7810348 A SE 7810348A SE 7810348 A SE7810348 A SE 7810348A SE 7810348 L SE7810348 L SE 7810348L
- Authority
- SE
- Sweden
- Prior art keywords
- vagors
- acoustic
- resonator device
- resonator
- acoustic vagors
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/6436—Coupled resonator filters having one acoustic track only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/25—Constructional features of resonators using surface acoustic waves
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4165477 | 1977-10-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7810348L true SE7810348L (en) | 1979-04-07 |
SE439865B SE439865B (en) | 1985-07-01 |
Family
ID=10420684
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7810348A SE439865B (en) | 1977-10-06 | 1978-10-03 | RESONATOR DEVICE FOR Acoustic Trolleys |
SE8304537A SE453447B (en) | 1977-10-06 | 1983-08-22 | RESONATOR DEVICE FOR Acoustic Trolleys |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8304537A SE453447B (en) | 1977-10-06 | 1983-08-22 | RESONATOR DEVICE FOR Acoustic Trolleys |
Country Status (9)
Country | Link |
---|---|
US (1) | US4254387A (en) |
JP (1) | JPS5937606B2 (en) |
AU (1) | AU517561B2 (en) |
BE (1) | BE871010A (en) |
CA (1) | CA1126829A (en) |
DE (1) | DE2843231A1 (en) |
FR (1) | FR2405589B1 (en) |
GB (1) | GB2009550B (en) |
SE (2) | SE439865B (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5773514A (en) * | 1980-10-25 | 1982-05-08 | Fujitsu Ltd | Surface acoustic wave filter |
JPS58154917A (en) * | 1982-03-10 | 1983-09-14 | Hitachi Ltd | Band pass filter of surface acoustic wave |
GB2117992B (en) * | 1982-03-24 | 1985-09-18 | Philips Electronic Associated | Parallel-series acoustic wave device arrangement |
JPH0714133B2 (en) * | 1985-04-03 | 1995-02-15 | 東洋通信機株式会社 | IDT excitation 2-port resonator |
JPS61230419A (en) * | 1985-04-03 | 1986-10-14 | Toyo Commun Equip Co Ltd | Two-port idt excitation type resonator and resonance filter |
US4616197A (en) * | 1985-12-05 | 1986-10-07 | R. F. Monolithics, Inc. | Resonator |
JPH085395B2 (en) * | 1986-04-14 | 1996-01-24 | 株式会社日本自動車部品総合研究所 | Automatic steering mechanism of steering device |
JPS62284509A (en) * | 1986-06-02 | 1987-12-10 | Murata Mfg Co Ltd | Surface acoustic wave resonator |
JPS632414A (en) * | 1986-06-21 | 1988-01-07 | Alps Electric Co Ltd | Elastic surface wave resonator |
JPH01122780A (en) * | 1987-11-06 | 1989-05-16 | Hitachi Ltd | Steering angle display device for steering wheel of vehicle |
DE3832944A1 (en) * | 1988-09-28 | 1990-04-05 | Siemens Ag | SURFACE WAVE INTERDIGITAL CONVERTER AND SURFACE WAVE FILTER WITH SYMMETRICAL OR PRESETABLE UNSYMMETRIC TRANSMISSION CHARACTERISTICS BETWEEN INPUT AND OUTPUT |
DE3832943A1 (en) * | 1988-09-28 | 1990-03-29 | Siemens Ag | SURFACE WAVE FILTER |
DE3833101A1 (en) * | 1988-09-29 | 1990-04-05 | Siemens Ag | CONVERTER WITH WAVE WEIGHTING FOR SURFACE WAVE FILTER |
DE3942140A1 (en) * | 1989-12-20 | 1991-06-27 | Siemens Ag | SURFACE WAVE REFLECTOR FILTER |
DE3942148A1 (en) * | 1989-12-20 | 1991-06-27 | Siemens Ag | SURFACE WAVE REFLECTOR FILTER |
JP3077052B2 (en) * | 1995-12-27 | 2000-08-14 | 株式会社村田製作所 | Surface acoustic wave resonator filter device |
DE19638634C2 (en) * | 1996-09-20 | 2001-03-01 | Siemens Ag | Sensor arrangement working with surface acoustic waves |
US5952765A (en) * | 1996-11-26 | 1999-09-14 | Trw Inc. | Reduced coupling saw filter |
DE19938748B4 (en) | 1999-08-16 | 2007-02-01 | Epcos Ag | Dual mode surface wave filter with improved symmetry and increased stop attenuation |
US20040103614A1 (en) * | 2002-12-03 | 2004-06-03 | Hanks Jeffrey Alan | Composite for storm protection |
RU2633658C2 (en) * | 2016-03-09 | 2017-10-16 | Акционерное общество "Научно-производственное предприятие "Радар ммс" | Surface acoustic wave resonator |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3886504A (en) * | 1974-05-20 | 1975-05-27 | Texas Instruments Inc | Acoustic surface wave resonator devices |
US3961293A (en) * | 1975-02-03 | 1976-06-01 | Texas Instruments Incorporated | Multi-resonant surface wave resonator |
GB1513466A (en) * | 1975-09-19 | 1978-06-07 | Mullard Ltd | Acoustic surface wave devices |
-
1978
- 1978-09-29 US US05/947,141 patent/US4254387A/en not_active Expired - Lifetime
- 1978-10-03 SE SE7810348A patent/SE439865B/en not_active IP Right Cessation
- 1978-10-03 CA CA312,548A patent/CA1126829A/en not_active Expired
- 1978-10-04 BE BE190905A patent/BE871010A/en unknown
- 1978-10-04 AU AU40415/78A patent/AU517561B2/en not_active Expired
- 1978-10-04 FR FR7828419A patent/FR2405589B1/en not_active Expired
- 1978-10-04 DE DE19782843231 patent/DE2843231A1/en not_active Ceased
- 1978-10-06 JP JP53123491A patent/JPS5937606B2/en not_active Expired
- 1978-12-01 GB GB7846848A patent/GB2009550B/en not_active Expired
-
1983
- 1983-08-22 SE SE8304537A patent/SE453447B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB2009550A (en) | 1979-06-13 |
JPS5460842A (en) | 1979-05-16 |
AU4041578A (en) | 1980-04-17 |
SE453447B (en) | 1988-02-01 |
DE2843231A1 (en) | 1979-04-12 |
SE439865B (en) | 1985-07-01 |
AU517561B2 (en) | 1981-08-06 |
FR2405589A1 (en) | 1979-05-04 |
JPS5937606B2 (en) | 1984-09-11 |
GB2009550B (en) | 1982-05-06 |
FR2405589B1 (en) | 1985-09-27 |
SE8304537L (en) | 1983-08-22 |
CA1126829A (en) | 1982-06-29 |
US4254387A (en) | 1981-03-03 |
SE8304537D0 (en) | 1983-08-22 |
BE871010A (en) | 1979-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7810348-8 Effective date: 19900706 Format of ref document f/p: F |